核磁共振波谱（兰州大学） Chapter 6_Multipulse NMR Experiments

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1、http://www.nd.edu/~smithgrp/structure/workbook.htmlhttp://chemistry2.csudh.edu/newstuff/nmrspectra.htmlhttp://www.chem.ucla.edu/~webspectra/http://www.chem.ucla.edu/~webspectra/http://homepages.strath.ac.uk/~bas01125/NMR_Teaching_Material/Teaching%20Links.htm

2、Chapter6:Multiple-PulseNMRExperimentsSingle-PulseSequencefor1D1HPFT-NMRComparisonofPulseSequencesfor1D1Hand13CPFT-NMR1H-NMR13C-NMRMagnetization,FIDandFrequencySpectruma.b.c.d.1DPFT-NMRExperimentDetectionpreparationFIDFTtimet2Frequencyf2NMRspectrumB0Time-Order

3、ofMultiple-pulseNMRExperimentsPreparationEvolutionDetectionInversionRecoveryPulseSequenceInversionRecoveryExperimentforT190oxshortτ180oxlongτ90oxTNulltime(τ)measurement1oinInversionRecoveryExperimentsTτ1=1.443oτoτ:nulltimeo13CTMeasurement1byInversionRecoveryE

4、xperimentsC-1τoC-4τoSpinEchoPulseSequenceSτfSfτfSTNullTimeMeasurementin2Spin-EchoExperimentsτττoPolarizationtransferexperimentsINEPT(InsensitiveNucleiEnhancedbyPolarizationTransfer)1H13CCharacteristicCoupledINEPTSpectralPatternsINEPTWith1JCH13CNMRwith1JCHPerm

5、utationsontheINEPTSpectrumofCHCl3INEPTnormalrefocusedrefocusedNormalnonOeINEPTINEPTandDecouplingdecouplingFullnOeINEPTSpectraofβ-IononeINEPTEnhancementof103RhbyPolarizationTransferfrom31P+1ttBuCOBuINEPTof103RhtPPtBuRhBu–1normall121TheRelationshipbetweenSignal

6、IntensitiesandthePulseAngle(θ)ofDEPT(DistortionlessEnhancementbyPolarizationTransfer)CH3CH45o90o135oCH2DEPTSpectraofMentholDEPT45o3418DEPT90o79DEPT135o10526EditingDEPTSpectra1DpulsesequenceofINADEQUATE(1J)CC(IncredibleNaturalAbundanceDoubleQuantumTransferExpe

7、riment)1DINADEQUATESpectraofPiperidine1J23HNCH22’2CH23’3CH1JCH24232CH21J341JCC1J431DINADEQUATESpectrumofCyclooctanol1J(3,2)SelectiveExcitationandSuppressionDANTEexperiment(DelaysAlternatingwithNutationsforTailoredExcitation)PeakSuppression:SuppressionofthePea

8、kofHDObyPre-saturationSuppressionHDOHDONormalPeakSuppression:WEFTExperiments(WaterEliminatedFourierTransform)3’HDO3’Long-rangeSelectiveProtonDecouplingC-9Spectrumofβ-IononeCouplingir.H7,H